Does Fundus Fluorescein Angiography Procedure Affect Ocular Pulse Amplitude?

Pekel, Gökhan; Acer, Semra; Yağcı, Ramazan; Çetin, Ebru; Hıraali, Mehmet Can; Kaya, Hüseyin

doi:10.1155/2013/942972

Cited by 4 publications

(2 citation statements)

References 30 publications

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“…Pekel et al evaluated choroidal changes after FFA using dynamic contour tonometry that measured changes in IOP and ocular pulse amplitude (OPA), and reported that both mean IOP and OPA values decreased following FFA, though difference was not statistically significant (20) In the present study, we used OCT device, a noninvasive diagnostic and monitoring tool for chorioretinal diseases (21), to detect possible changes following angiographic procedures. We found no significant differences in CT before and after FFA; however, there were significant differences in CT following ICGA.…”

Section: Discussionmentioning

confidence: 86%

Does choroidal thickness change with fluorescein or indocyanine retinal angiography procedures?

Yılmaz¹

2017

Beyoglu Eye J

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Objectives: This study was designed to examine effects of fundus fluorescein angiography (FFA) and indocyanine green angiography (ICGA) procedures on retinal and choroidal anatomy using optical coherence topography (OCT). Methods: Sixty eyes of 60 patients were included in this study. Patients who underwent FFA (14 females and 16 males) formed Group 1, and patients who underwent ICGA (17 females, 13 males) formed Group 2. After full ophthalmological examination, macular and choroidal thickness (CT) were measured via OCT. Approximately 15 to 20 minutes after dye was injected for angiography procedure, OCT scan was performed again. Statistical analyses were performed to compare measurements taken before and after procedure. Results: Mean age was 58.9±10.7 years (range: 42-82 years) in FFA group and 54.9±16.1 (range: 27-77 years) in ICGA group. Mean macular thickness was 339±78 μm before FFA and 339±72 after FFA (p=0.792). Mean macular thickness was 340±80 μm before ICGA and 341±73 μm after ICGA (p=0.571). Mean subfoveal CT was 275±36 μm before FFA and 271±31 μm after FFA (p=0.389). Mean subfoveal CT was 338±36 μm before ICGA and 366±38 μm after ICGA (p=0.022). There was significant increase in CT after ICGA procedure. Conclusion: CT may not change with FFA procedure, but may increase with ICGA procedure.

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Section: Discussionmentioning

confidence: 86%

Does choroidal thickness change with fluorescein or indocyanine retinal angiography procedures?

Yılmaz¹

2017

Beyoglu Eye J

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“…Conventional diagnostic tools for DR are Fluorescence Angiography (FA), Optical Coherence Tomography (OCT) and Colour Fundoscopy (CF). FA is an invasive technique and often results in post-test complications to patients due to the usage of the dye [9]. OCT and CF are non-invasive technique.…”

Section: Introductionmentioning

confidence: 99%

Raman spectral probe and unique fractal signatures for human serum with diabetes and early stage diabetic retinopathy

Singh

Mazumder

Halder

et al. 2018

Biomed. Phys. Eng. Express

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Diabetic retinopathy is a sequela of diabetes. Biomedical research endeavours to find fast, easy and sensitive diagnostic tools, which can be used to identify such diseases at an early stage, in order to provide preventive therapeutic measures. Our work proposes two experimental methodologies to discern the difference between blood serum from healthy subjects and that of diabetes/early stage diabetes retinopathy patients. In the first approach we establish Raman spectroscopy, which probes constituent molecules in the serum, as a reliable analytical technique for this purpose. It is demonstrated that other than individual Raman spectral analysis, chemometric analyses of the data, obtained from Raman measurements, can be used to discriminate healthy and diabetic serum samples. Further, we propose a novel technique, in which the geometry of the fractal patterns formed by gold nanoparticles, in the presence of serum samples, is used in finding unique diagnostic signatures. Asprepared gold colloidal particles form directional fractals with four-fold symmetry. We have shown that the fractal structures formed by gold nanoparticles are distinctly different when incubated with serum samples. Most importantly, we observe unique arc-fractals by gold particles in presence of diabetes retinopathy serum samples. We quantify the fractal geometry by measuring the persistence length, which can be used as a biomarker in pathological reporting systems. We believe that our findings will motivate the medical researchers to employ the proposed methodologies for diagnosing diabetes/early stage diabetic retinopathy on larger number of subjects in clinical trials.

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Inventory of Ocular Pulse Amplitude Values in Healthy Subjects and Patients With Ophthalmologic Illnesses: Systematic Review and Meta-analysis

Shajiei,

Iadanza,

Bachmann

et al. 2024

American Journal of Ophthalmology

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Does Fundus Fluorescein Angiography Procedure Affect Ocular Pulse Amplitude?

Cited by 4 publications

References 30 publications

Does choroidal thickness change with fluorescein or indocyanine retinal angiography procedures?

Does choroidal thickness change with fluorescein or indocyanine retinal angiography procedures?

Raman spectral probe and unique fractal signatures for human serum with diabetes and early stage diabetic retinopathy

Inventory of Ocular Pulse Amplitude Values in Healthy Subjects and Patients With Ophthalmologic Illnesses: Systematic Review and Meta-analysis

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